JPH0397615U - - Google Patents
Info
- Publication number
- JPH0397615U JPH0397615U JP604890U JP604890U JPH0397615U JP H0397615 U JPH0397615 U JP H0397615U JP 604890 U JP604890 U JP 604890U JP 604890 U JP604890 U JP 604890U JP H0397615 U JPH0397615 U JP H0397615U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- sensor section
- detection
- adjusting means
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案にかかるエンコーダ回路の実施
例を示す回路図、第２図は本考案にかかるエンコ
ーダ回路の別の実施例を示す回路図、第３図は従
来のエンコーダ回路の一例を示す回路図、第４図
は同上従来例による通常時の磁気抵抗素子の出力
を示す波形図、第５図は同じくバツクアツプ時の
磁気抵抗素子の出力を示す波形図、第６図は従来
のエンコーダ回路の別の例を示す回路図である。
１……通常時用電源、２……バツクアツプ電源
、ＭＲ１……第１の磁気抵抗素子、ＭＲ２……第
２の磁気抵抗素子、ＶＲ１……第１の調整手段、
ＶＲ２……第２の調整手段。
FIG. 1 is a circuit diagram showing an embodiment of the encoder circuit according to the present invention, FIG. 2 is a circuit diagram showing another embodiment of the encoder circuit according to the present invention, and FIG. 3 is an example of a conventional encoder circuit. Circuit diagram, Figure 4 is a waveform diagram showing the output of the magnetoresistive element during normal operation according to the conventional example, Figure 5 is a waveform diagram showing the output of the magnetoresistive element during backup, and Figure 6 is a conventional encoder circuit. FIG. 3 is a circuit diagram showing another example. DESCRIPTION OF SYMBOLS 1...Normal power supply, 2...Backup power supply, MR1 ...First magnetoresistive element, MR2 ...Second magnetoresistive element, VR1 ...First adjustment means,
VR 2 ...Second adjustment means.
Claims (1)
を備え、センサ部からの検出信号をカウンタでカ
ウントするエンコーダ回路であつて、 上記センサ部は、第１の磁気抵抗素子を有する
第１の検出回路と、第２の磁気抵抗素子を有する
第２の検出回路を有し、 上記バツクアツプ電源使用状態で上記両検出回
路のオフセツトを調整するための第１の調整手段
と、 上記第１の調整手段による調整後に上記ドライ
ブ電源使用状態で上記両検出回路のオフセツトを
調整するための第２の調整手段とを有することを
特徴とするエンコーダ回路。[Scope of Claim for Utility Model Registration] An encoder circuit that is equipped with a power supply for normal use and a backup power supply for use during power outages, and that counts detection signals from a sensor section with a counter, wherein the sensor section has a first magnetic resistance. a first detection circuit having an element and a second detection circuit having a second magnetoresistive element; and a second adjusting means for adjusting the offset of both of the detection circuits in the state in which the drive power supply is used after the adjustment by the first adjusting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP604890U JPH0729456Y2 (en) | 1990-01-25 | 1990-01-25 | Encoder circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP604890U JPH0729456Y2 (en) | 1990-01-25 | 1990-01-25 | Encoder circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0397615U true JPH0397615U (en) | 1991-10-08 |
| JPH0729456Y2 JPH0729456Y2 (en) | 1995-07-05 |
Family
ID=31509731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP604890U Expired - Lifetime JPH0729456Y2 (en) | 1990-01-25 | 1990-01-25 | Encoder circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729456Y2 (en) |
-
1990
- 1990-01-25 JP JP604890U patent/JPH0729456Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729456Y2 (en) | 1995-07-05 |
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